In this final passage of his tale, Swift indulges in the bitterest of satire. The source of Gulliver's madness rests in his pride which caused him to reject his own Yahoo-hood. His impossible attempt to emulate the Houyhnhnms piles frustration upon humiliation as he is surrounded by Yahoos who constantly bring to mind his failure. Gulliver lives out his life, not as the adventurous voyager, but as a man, a Yahoo haunted by what he cannot have.